<p>Houma-Thibodaux's Catholic-school students will lose early dismissal days that had been set for Sept. 26 and Oct. 31 to make up for lost class time during Hurricane Isaac.</p><p>E.D. White and Vandebilt high schools will also eliminate their first quarter exams, scheduled for Oct. 9-12. </p><p>Schools already cancelled an early dismissal day on Sept. 4.</p><p>Lafourche Parish public schools have yet to announce their makeup days.</p>